GB1345009A - Fluid operable actuator - Google Patents
Fluid operable actuatorInfo
- Publication number
- GB1345009A GB1345009A GB6009671A GB6009671A GB1345009A GB 1345009 A GB1345009 A GB 1345009A GB 6009671 A GB6009671 A GB 6009671A GB 6009671 A GB6009671 A GB 6009671A GB 1345009 A GB1345009 A GB 1345009A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- plungers
- piston
- movement
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/262—Locking mechanisms using friction, e.g. brake pads
Abstract
1345009 Fluid operated actuators TOYOOKI KOGYO K K 23 Dec 1971 [28 Dec 1970 30 Jan 1971] 60096/71 Heading F1D When a fluid operated actuator comprising a piston 4 slidable in a cylinder 1 is unpressurised, brake bands 15 mounted in a groove 16 in the piston frictionally engages the cylinder 1 to lock the piston against movement. If pressure is applied to one or other of the cylinder chambers 23a, 23b, plungers 12 are displaced from their neutral positions (shown) against the action of centralling springs Fig.3, (not shown), to release the brake bands. Movement of the plungers 12 is effected by the pressure acting on one or other side of a pressure plate 11, the pressure being admitted through a passageway 24 to a chamber 25 for movement of the plate to the left. In an embodiment (not shown), a rack (26) on one of the plungers 12 rotates a pinion on a shaft having an elliptical cam for expanding a single brake band. As shown a 14a, 14b, 14c on each cam profile plunger causes radial displacement of a ball 17 to expand a respective band 15.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12799170A JPS4835665B1 (en) | 1970-12-28 | 1970-12-28 | |
| JP344271A JPS5111738B1 (en) | 1971-01-30 | 1971-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1345009A true GB1345009A (en) | 1974-01-30 |
Family
ID=26337016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6009671A Expired GB1345009A (en) | 1970-12-28 | 1971-12-23 | Fluid operable actuator |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3733971A (en) |
| GB (1) | GB1345009A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3978771A (en) * | 1975-04-21 | 1976-09-07 | Clark Equipment Company | Mechanical piston retention for free wheeling |
| US4836091A (en) * | 1980-03-17 | 1989-06-06 | De-Sta-Co Division, Dover Resources, Inc. | Hydraulic work support |
| FR2519386A1 (en) * | 1981-12-31 | 1983-07-08 | Bosq Sylvette | Self locking pneumatic actuator - has three chambers and brake jaw to give dual direction movement or locking of piston |
| WO2017127001A1 (en) * | 2016-01-21 | 2017-07-27 | Saab Ab | A fluid actuator arrangement |
| JP6712032B2 (en) * | 2017-08-30 | 2020-06-17 | Smc株式会社 | Balancer cylinder and work transfer device using balancer cylinder |
-
1971
- 1971-12-22 US US00210708A patent/US3733971A/en not_active Expired - Lifetime
- 1971-12-23 GB GB6009671A patent/GB1345009A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3733971A (en) | 1973-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |